コード例 #1
0
static snd_pcm_uframes_t mtk_pcm_fmtx_pointer(struct snd_pcm_substream *substream)
{
    kal_int32 HW_memory_index = 0;
    kal_int32 HW_Cur_ReadIdx = 0;
    kal_uint32 Frameidx = 0;
    kal_int32 Afe_consumed_bytes = 0;

    AFE_BLOCK_T *Afe_Block = &pMemControl->rBlock;
    PRINTK_AUD_FMTX("[mtk_pcm_fmtx_pointer] Afe_Block->u4DMAReadIdx = 0x%x\n", Afe_Block->u4DMAReadIdx);

    Auddrv_Dl1_Spinlock_lock();

    if (GetMemoryPathEnable(Soc_Aud_Digital_Block_MEM_DL1) == true)
    {
        HW_Cur_ReadIdx = Afe_Get_Reg(AFE_DL1_CUR);
        if (HW_Cur_ReadIdx == 0)
        {
            PRINTK_AUD_FMTX("[Auddrv] HW_Cur_ReadIdx ==0 \n");
            HW_Cur_ReadIdx = Afe_Block->pucPhysBufAddr;
        }
        HW_memory_index = (HW_Cur_ReadIdx - Afe_Block->pucPhysBufAddr);
        if (HW_memory_index >=  Afe_Block->u4DMAReadIdx)
        {
            Afe_consumed_bytes = HW_memory_index - Afe_Block->u4DMAReadIdx;
        }
        else
        {
            Afe_consumed_bytes = Afe_Block->u4BufferSize + HW_memory_index - Afe_Block->u4DMAReadIdx ;
        }

        Afe_consumed_bytes = Align64ByteSize(Afe_consumed_bytes);

        Afe_Block->u4DataRemained -= Afe_consumed_bytes;
        Afe_Block->u4DMAReadIdx += Afe_consumed_bytes;
        Afe_Block->u4DMAReadIdx %= Afe_Block->u4BufferSize;
        PRINTK_AUD_DL1("[Auddrv] HW_Cur_ReadIdx =0x%x HW_memory_index = 0x%x Afe_consumed_bytes	= 0x%x\n", HW_Cur_ReadIdx, HW_memory_index, Afe_consumed_bytes);
        Auddrv_Dl1_Spinlock_unlock();
        return audio_bytes_to_frame(substream , Afe_Block->u4DMAReadIdx);
    }
    else
    {
        Frameidx = audio_bytes_to_frame(substream , Afe_Block->u4DMAReadIdx);
        Auddrv_Dl1_Spinlock_unlock();
        return Frameidx;
    }
}
コード例 #2
0
static snd_pcm_uframes_t mtk_pcm_i2s0_pointer(struct snd_pcm_substream *substream)
{
    kal_int32 HW_memory_index = 0;
    kal_int32 HW_Cur_ReadIdx = 0;
    kal_uint32 Frameidx = 0;
    kal_int32 Afe_consumed_bytes = 0;
    AFE_BLOCK_T *Afe_Block = &pI2s0MemControl->rBlock;
    unsigned int flags;
    struct snd_pcm_runtime *runtime = substream->runtime;
    PRINTK_AUD_DL1(" %s Afe_Block->u4DMAReadIdx = 0x%x\n", __func__, Afe_Block->u4DMAReadIdx);

    // get total bytes to copy
    //Frameidx = audio_bytes_to_frame(substream , Afe_Block->u4DMAReadIdx);
    //return Frameidx;
    spin_lock_irqsave(&auddrv_I2S0_lock, flags);
    if (GetMemoryPathEnable(Soc_Aud_Digital_Block_MEM_DL1) == true)
    {
        HW_Cur_ReadIdx = Afe_Get_Reg(AFE_DL1_CUR);
        if (HW_Cur_ReadIdx == 0)
        {
            PRINTK_AUDDRV("[Auddrv] HW_Cur_ReadIdx ==0 \n");
            HW_Cur_ReadIdx = Afe_Block->pucPhysBufAddr;
        }
        HW_memory_index = (HW_Cur_ReadIdx - Afe_Block->pucPhysBufAddr);
        if (HW_memory_index > Afe_Block->u4DMAReadIdx)
        {
            Afe_consumed_bytes = HW_memory_index - Afe_Block->u4DMAReadIdx;
        }
        else
        {
            Afe_consumed_bytes = Afe_Block->u4BufferSize + HW_memory_index - Afe_Block->u4DMAReadIdx ;
        }
        Afe_Block->u4DataRemained -= Afe_consumed_bytes;
        Afe_Block->u4DMAReadIdx += Afe_consumed_bytes;
        Afe_Block->u4DMAReadIdx %= Afe_Block->u4BufferSize;
        PRINTK_AUD_DL1("[Auddrv] HW_Cur_ReadIdx =0x%x HW_memory_index = 0x%x pointer return = 0x%x \n", HW_Cur_ReadIdx, HW_memory_index, (HW_memory_index >> 2));
        spin_unlock_irqrestore(&auddrv_I2S0_lock, flags);
        return audio_bytes_to_frame(substream , Afe_Block->u4DMAReadIdx);
    }
コード例 #3
0
static int mtk_pcm_fmtx_copy(struct snd_pcm_substream *substream,
                             int channel, snd_pcm_uframes_t pos,
                             void __user *dst, snd_pcm_uframes_t count)
{
    AFE_BLOCK_T  *Afe_Block = NULL;
    unsigned long flags;
    char *data_w_ptr = (char *)dst;
    int copy_size = 0, Afe_WriteIdx_tmp;

    // get total bytes to copy
    count = audio_frame_to_bytes(substream , count);

    PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] pos = %lu count = %lu\n ", pos, count);

    // check which memif nned to be write
    Afe_Block = &pMemControl->rBlock;

    // handle for buffer management

    PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy]AudDrv_write WriteIdx=0x%x, ReadIdx=0x%x, DataRemained=0x%x \n",
                    Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained);

    if (Afe_Block->u4BufferSize == 0)
    {
        printk("AudDrv_write: u4BufferSize=0 Error");
        return 0;
    }

    spin_lock_irqsave(&auddrv_FMTxCtl_lock, flags);
    copy_size = Afe_Block->u4BufferSize - Afe_Block->u4DataRemained;  //  free space of the buffer
    spin_unlock_irqrestore(&auddrv_FMTxCtl_lock, flags);
    if (count <=  copy_size)
    {
        if (copy_size < 0)
        {
            copy_size = 0;
        }
        else
        {
            copy_size = count;
        }
    }

    copy_size = Align64ByteSize(copy_size);
    PRINTK_AUD_DL1("copy_size=0x%x, count=0x%x \n", copy_size, count);

    if (copy_size != 0)
    {
        spin_lock_irqsave(&auddrv_FMTxCtl_lock, flags);
        Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
        spin_unlock_irqrestore(&auddrv_FMTxCtl_lock, flags);

        if (Afe_WriteIdx_tmp + copy_size < Afe_Block->u4BufferSize) // copy once
        {
            if (!access_ok(VERIFY_READ, data_w_ptr, copy_size))
            {
                PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] 0ptr invalid data_w_ptr=0x%x, size=%d", (kal_uint32)data_w_ptr, copy_size);
                PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] u4BufferSize=%d, u4DataRemained=%d", Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
            }
            else
            {
                PRINTK_AUD_FMTX("memcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx= %p data_w_ptr = %p copy_size = 0x%x\n",
                                Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp, data_w_ptr, copy_size);
                if (copy_from_user((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), data_w_ptr, copy_size))
                {
                    PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] Fail copy from user \n");
                    return -1;
                }
            }

            spin_lock_irqsave(&auddrv_FMTxCtl_lock, flags);
            Afe_Block->u4DataRemained += copy_size;
            Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + copy_size;
            Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
            spin_unlock_irqrestore(&auddrv_FMTxCtl_lock, flags);
            data_w_ptr += copy_size;
            count -= copy_size;

            PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] finish1, copy_size:%x, WriteIdx:%x, ReadIdx=%x, DataRemained:%x, count=%x \r\n",
                            copy_size, Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained, count);

        }
        else  // copy twice
        {
            kal_uint32 size_1 = 0, size_2 = 0;
            size_1 = Align64ByteSize((Afe_Block->u4BufferSize - Afe_WriteIdx_tmp));
            size_2 = Align64ByteSize((copy_size - size_1));
            PRINTK_AUD_DL1("size_1=0x%x, size_2=0x%x \n", size_1, size_2);
            if (!access_ok(VERIFY_READ, data_w_ptr, size_1))
            {
                printk("[mtk_pcm_fmtx_copy] 1ptr invalid data_w_ptr=%p, size_1=%d", data_w_ptr, size_1);
                printk("[mtk_pcm_fmtx_copy] u4BufferSize=%d, u4DataRemained=%d", Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
            }
            else
            {

                PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy]mcmcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx= %x data_w_ptr = %p size_1 = %x\n",
                                Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp, data_w_ptr, size_1);
                if ((copy_from_user((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), data_w_ptr , size_1)))
                {
                    PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] Fail 1 copy from user");
                    return -1;
                }
            }
            spin_lock_irqsave(&auddrv_FMTxCtl_lock, flags);
            Afe_Block->u4DataRemained += size_1;
            Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + size_1;
            Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
            Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
            spin_unlock_irqrestore(&auddrv_FMTxCtl_lock, flags);

            if (!access_ok(VERIFY_READ, data_w_ptr + size_1, size_2))
            {
                PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] 2ptr invalid data_w_ptr=%x, size_1=%d, size_2=%d", (kal_uint32)data_w_ptr, size_1, size_2);
                PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] u4BufferSize=%d, u4DataRemained=%d", Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
            }
            else
            {

                PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy]mcmcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx= %x data_w_ptr+size_1 = %p size_2 = %x\n",
                                Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp, data_w_ptr + size_1, size_2);
                if ((copy_from_user((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), (data_w_ptr + size_1), size_2)))
                {
                    PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] Fail 2  copy from user");
                    return -1;
                }
            }
            spin_lock_irqsave(&auddrv_FMTxCtl_lock, flags);

            Afe_Block->u4DataRemained += size_2;
            Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + size_2;
            Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
            spin_unlock_irqrestore(&auddrv_FMTxCtl_lock, flags);
            count -= copy_size;
            data_w_ptr += copy_size;

            PRINTK_AUD_FMTX("[mtk_pcm_fmtx_copy] finish2, copy size:%x, WriteIdx:%x,ReadIdx=%x DataRemained:%x \r\n",
                            copy_size, Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained);
        }
    }
    return 0;
}
コード例 #4
0
static int mtk_pcm_dl1bt_copy(struct snd_pcm_substream *substream,
			      int channel, snd_pcm_uframes_t pos,
			      void __user *dst, snd_pcm_uframes_t count)
{
	AFE_BLOCK_T *Afe_Block = NULL;
	unsigned long flags;
	char *data_w_ptr = (char *)dst;
	int copy_size = 0, Afe_WriteIdx_tmp;
	PRINTK_AUD_DL1("mtk_pcm_dl1bt_copy pos = %lu count = %lu\n ", pos, count);

	/* get total bytes to copy */
	count = audio_frame_to_bytes(substream, count);

	/* check which memif nned to be write */
	Afe_Block = &pdl1btMemControl->rBlock;

	/* handle for buffer management */

	PRINTK_AUD_DL1("AudDrv_write WriteIdx=0x%x, ReadIdx=0x%x, DataRemained=0x%x\n",
		       Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained);

	if (Afe_Block->u4BufferSize == 0) {
		pr_err("AudDrv_write: u4BufferSize=0 Error");
		return 0;
	}

	spin_lock_irqsave(&auddrv_DL1BTCtl_lock, flags);
	copy_size = Afe_Block->u4BufferSize - Afe_Block->u4DataRemained;	/* free space of the buffer */
	spin_unlock_irqrestore(&auddrv_DL1BTCtl_lock, flags);
	if (count <=  copy_size) {
		if (copy_size < 0)
			copy_size = 0;
		else
			copy_size = count;
	}

#ifdef AUDIO_64BYTE_ALIGN
	copy_size = Align64ByteSize(copy_size);
#endif

	PRINTK_AUD_DL1("copy_size=0x%x, count=0x%x\n", copy_size, (unsigned int)count);

	if (copy_size != 0) {
		spin_lock_irqsave(&auddrv_DL1BTCtl_lock, flags);
		Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
		spin_unlock_irqrestore(&auddrv_DL1BTCtl_lock, flags);

		if (Afe_WriteIdx_tmp + copy_size < Afe_Block->u4BufferSize) {	/* copy once */
			if (!access_ok(VERIFY_READ, data_w_ptr, copy_size)) {
				PRINTK_AUDDRV("AudDrv_write 0ptr invalid data_w_ptr=%p, size=%d",
					      data_w_ptr, copy_size);
				PRINTK_AUDDRV("AudDrv_write u4BufferSize=%d, u4DataRemained=%d",
					      Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
			} else {
				PRINTK_AUD_DL1("memcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx=%p, data_w_ptr=%p,
					copy_size = 0x%x\n", Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp,
					data_w_ptr, copy_size);
				if (copy_from_user
				    ((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), data_w_ptr,
				     copy_size)) {
					PRINTK_AUDDRV("AudDrv_write Fail copy from user\n");
					return -1;
				}
			}

			spin_lock_irqsave(&auddrv_DL1BTCtl_lock, flags);
			Afe_Block->u4DataRemained += copy_size;
			Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + copy_size;
			Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
			spin_unlock_irqrestore(&auddrv_DL1BTCtl_lock, flags);
			data_w_ptr += copy_size;
			count -= copy_size;

			PRINTK_AUD_DL1("AudDrv_write finish1, copy_size:%x, WriteIdx:%x, ReadIdx=%x,
				DataRemained:%x, count=%lu \r\n", copy_size, Afe_Block->u4WriteIdx,
				Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained, count);

		} else {	/* copy twice */
コード例 #5
0
static int mtk_pcm_I2S0dl1_copy(struct snd_pcm_substream *substream,
                                int channel, snd_pcm_uframes_t pos,
                                void __user *dst, snd_pcm_uframes_t count)
{
    AFE_BLOCK_T  *Afe_Block = NULL;
    int copy_size = 0, Afe_WriteIdx_tmp;
    unsigned long flags;
    //struct snd_pcm_runtime *runtime = substream->runtime;
    char *data_w_ptr = (char *)dst;
    PRINTK_AUD_DL1("mtk_pcm_copy pos = %lu count = %lu\n ", pos, count);

#ifdef _DEBUG_6328_CLK
//    printk("TEST_OUT = 0x%x\n", Ana_Get_Reg(TEST_OUT));  
//    printk("AFUNC_AUD_MON0 = 0x%x\n", Ana_Get_Reg(AFUNC_AUD_MON0));    
//    printk("AFUNC_AUD_MON1 = 0x%x\n", Ana_Get_Reg(AFUNC_AUD_MON1));    

#endif

    // get total bytes to copy
    count = audio_frame_to_bytes(substream , count);

    // check which memif nned to be write
    Afe_Block = &pI2S0dl1MemControl->rBlock;

    // handle for buffer management

    PRINTK_AUD_DL1(" WriteIdx=0x%x, ReadIdx=0x%x, DataRemained=0x%x \n",
                   Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained);

    if (Afe_Block->u4BufferSize == 0)
    {
        printk(" u4BufferSize=0 Error");
        return 0;
    }

    spin_lock_irqsave(&auddrv_I2S0dl1_lock, flags);
    copy_size = Afe_Block->u4BufferSize - Afe_Block->u4DataRemained;  //  free space of the buffer
    spin_unlock_irqrestore(&auddrv_I2S0dl1_lock, flags);

    if (count <=  copy_size)
    {
        if (copy_size < 0)
        {
            copy_size = 0;
        }
        else
        {
            copy_size = count;
        }
    }

    copy_size = Align64ByteSize(copy_size);
    PRINTK_AUD_DL1("copy_size=0x%x, count=0x%x \n", copy_size, (unsigned int)count);

    if (copy_size != 0)
    {
        spin_lock_irqsave(&auddrv_I2S0dl1_lock, flags);
        Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
        spin_unlock_irqrestore(&auddrv_I2S0dl1_lock, flags);

        if (Afe_WriteIdx_tmp + copy_size < Afe_Block->u4BufferSize) // copy once
        {
            if (!access_ok(VERIFY_READ, data_w_ptr, copy_size))
            {
                PRINTK_AUDDRV("0ptr invalid data_w_ptr=%p, size=%d", data_w_ptr, copy_size);
                PRINTK_AUDDRV(" u4BufferSize=%d, u4DataRemained=%d", Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
            }
            else
            {

                PRINTK_AUD_DL1("memcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx= %p data_w_ptr = %p copy_size = 0x%x\n",
                               Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp, data_w_ptr, copy_size);
                if (copy_from_user((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), data_w_ptr, copy_size))
                {
                    PRINTK_AUDDRV(" Fail copy from user \n");
                    return -1;
                }
            }

            spin_lock_irqsave(&auddrv_I2S0dl1_lock, flags);
            Afe_Block->u4DataRemained += copy_size;
            Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + copy_size;
            Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
            spin_unlock_irqrestore(&auddrv_I2S0dl1_lock, flags);
            data_w_ptr += copy_size;
            count -= copy_size;

            PRINTK_AUD_DL1(" finish1, copy_size:%x, WriteIdx:%x, ReadIdx=%x, DataRemained:%x, count=%x \r\n",
                           copy_size, Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained, (unsigned int)count);

        }
        else  // copy twice
        {
            kal_uint32 size_1 = 0, size_2 = 0;
            size_1 = Align64ByteSize((Afe_Block->u4BufferSize - Afe_WriteIdx_tmp));
            size_2 = Align64ByteSize((copy_size - size_1));
            PRINTK_AUD_DL1("size_1=0x%x, size_2=0x%x \n", size_1, size_2);
            if (!access_ok(VERIFY_READ, data_w_ptr, size_1))
            {
                printk(" 1ptr invalid data_w_ptr=%p, size_1=%d", data_w_ptr, size_1);
                printk(" u4BufferSize=%d, u4DataRemained=%d", Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
            }
            else
            {

                PRINTK_AUD_DL1("mcmcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx= %p data_w_ptr = %p size_1 = %x\n",
                               Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp, data_w_ptr, size_1);
                if ((copy_from_user((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), data_w_ptr , size_1)))
                {
                    PRINTK_AUDDRV(" Fail 1 copy from user");
                    return -1;
                }
            }
            spin_lock_irqsave(&auddrv_I2S0dl1_lock, flags);
            Afe_Block->u4DataRemained += size_1;
            Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + size_1;
            Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
            Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
            spin_unlock_irqrestore(&auddrv_I2S0dl1_lock, flags);

            if (!access_ok(VERIFY_READ, data_w_ptr + size_1, size_2))
            {
                PRINTK_AUDDRV("2ptr invalid data_w_ptr=%p, size_1=%d, size_2=%d", data_w_ptr, size_1, size_2);
                PRINTK_AUDDRV("u4BufferSize=%d, u4DataRemained=%d", Afe_Block->u4BufferSize, Afe_Block->u4DataRemained);
            }
            else
            {

                PRINTK_AUD_DL1("mcmcpy Afe_Block->pucVirtBufAddr+Afe_WriteIdx= %p data_w_ptr+size_1 = %p size_2 = %x\n",
                               Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp, data_w_ptr + size_1, size_2);
                if ((copy_from_user((Afe_Block->pucVirtBufAddr + Afe_WriteIdx_tmp), (data_w_ptr + size_1), size_2)))
                {
                    PRINTK_AUDDRV("AudDrv_write Fail 2  copy from user");
                    return -1;
                }
            }
            spin_lock_irqsave(&auddrv_I2S0dl1_lock, flags);

            Afe_Block->u4DataRemained += size_2;
            Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + size_2;
            Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
            spin_unlock_irqrestore(&auddrv_I2S0dl1_lock, flags);
            count -= copy_size;
            data_w_ptr += copy_size;

            PRINTK_AUD_DL1(" finish2, copy size:%x, WriteIdx:%x,ReadIdx=%x DataRemained:%x \r\n",
                           copy_size, Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx, Afe_Block->u4DataRemained);
        }
    }
    PRINTK_AUD_DL1("pcm_copy return \n");
    return 0;
}